Jupiter Post is Elizabeth Fausak.

Ms. Fausak is a post-production audio mixer and sound designer, working in television and independent film.  She has mixed shows for ABC, NBC, PBS, Discovery, Food Network, MTV, History, Cartoon Network, HBO, and Comedy Central, as well as mixing films featured at Cannes, Tribeca, and Sundance film festivals, among others.  Her work on the feature film Muscle Shoals earned a 2014 Golden Reel nomination by the Motion Picture Sound Editors for Best Sound Editing, and she was dialog editor and re-recording mixer for The Men Who Built America, which was awarded the 2013 Primetime Emmy for Sound Editing for Nonfiction Programming.

Elizabeth Fausak on IMDB